400807020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:687

約数の個数: 96

約数和(自身を含む): 1143072000

約数和(自身を除く): 742264980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 149, 214, 298, 321, 419, 428, 447, 535, 596, 642, 745, 838, 894, 1070, 1257, 1284, 1490, 1605, 1676, 1788, 2095, 2140, 2235, 2514, 2980, 3210, 4190, 4470, 5028, 6285, 6420, 8380, 8940, 12570, 15943, 25140, 31886, 44833, 47829, 62431, 63772, 79715, 89666, 95658, 124862, 134499, 159430, 179332, 187293, 191316, 224165, 239145, 249724, 268998, 312155, 318860, 374586, 448330, 478290, 537996, 624310, 672495, 749172, 896660, 936465, 956580, 1248620, 1344990, 1872930, 2689980, 3745860, 6680117, 13360234, 20040351, 26720468, 33400585, 40080702, 66801170, 80161404, 100201755, 133602340, 200403510, 400807020]

約数ペア:

[(1, 400807020), (2, 200403510), (3, 133602340), (4, 100201755), (5, 80161404), (6, 66801170), (10, 40080702), (12, 33400585), (15, 26720468), (20, 20040351), (30, 13360234), (60, 6680117), (107, 3745860), (149, 2689980), (214, 1872930), (298, 1344990), (321, 1248620), (419, 956580), (428, 936465), (447, 896660), (535, 749172), (596, 672495), (642, 624310), (745, 537996), (838, 478290), (894, 448330), (1070, 374586), (1257, 318860), (1284, 312155), (1490, 268998), (1605, 249724), (1676, 239145), (1788, 224165), (2095, 191316), (2140, 187293), (2235, 179332), (2514, 159430), (2980, 134499), (3210, 124862), (4190, 95658), (4470, 89666), (5028, 79715), (6285, 63772), (6420, 62431), (8380, 47829), (8940, 44833), (12570, 31886), (15943, 25140)]